GB1590393A - Elastic surface wave oscillator - Google Patents
Elastic surface wave oscillator Download PDFInfo
- Publication number
- GB1590393A GB1590393A GB28389/77A GB2838977A GB1590393A GB 1590393 A GB1590393 A GB 1590393A GB 28389/77 A GB28389/77 A GB 28389/77A GB 2838977 A GB2838977 A GB 2838977A GB 1590393 A GB1590393 A GB 1590393A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oscillator
- elastic surface
- transducers
- fingers
- interdigitated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 210000001520 comb Anatomy 0.000 claims description 15
- 230000010355 oscillation Effects 0.000 claims description 10
- 239000010453 quartz Substances 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 238000003491 array Methods 0.000 claims description 5
- 230000000644 propagated effect Effects 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- 239000011295 pitch Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 238000005468 ion implantation Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 101100473185 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) rpn-1 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000010849 ion bombardment Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02543—Characteristics of substrate, e.g. cutting angles
- H03H9/02551—Characteristics of substrate, e.g. cutting angles of quartz substrates
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
- H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
- H03B5/326—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator the resonator being an acoustic wave device, e.g. SAW or BAW device
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02818—Means for compensation or elimination of undesirable effects
- H03H9/02913—Measures for shielding against electromagnetic fields
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7621104A FR2358051A1 (fr) | 1976-07-09 | 1976-07-09 | Oscillateur a ondes elastiques de surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1590393A true GB1590393A (en) | 1981-06-03 |
Family
ID=9175517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28389/77A Expired GB1590393A (en) | 1976-07-09 | 1977-07-06 | Elastic surface wave oscillator |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4129837A (no) |
| JP (1) | JPS5330854A (no) |
| CA (1) | CA1078933A (no) |
| DE (1) | DE2731032A1 (no) |
| FR (1) | FR2358051A1 (no) |
| GB (1) | GB1590393A (no) |
| PL (1) | PL112388B1 (no) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2117593A (en) * | 1982-03-31 | 1983-10-12 | Marconi Co Ltd | Adjusting the frequency response of surface acoustic wave devices |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3730107A1 (de) * | 1987-09-08 | 1989-03-16 | Siemens Ag | Oszillatorschaltung mit oberflaechenwellenfilter |
| US4926146A (en) * | 1988-05-09 | 1990-05-15 | Trw Inc. | Parallel-to-serial signal processor using surface acoustic waves |
| JP2531020B2 (ja) * | 1988-10-17 | 1996-09-04 | 株式会社村田製作所 | 弾性表面波発振器 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3573673A (en) * | 1969-01-08 | 1971-04-06 | Zenith Radio Corp | Acoustic surface wave filters |
| GB1328343A (en) * | 1969-09-17 | 1973-08-30 | Mullard Ltd | Electro mechanical filters |
| US3872410A (en) * | 1972-12-04 | 1975-03-18 | Gte Laboratories Inc | Surface wave filter for tv if stage |
| GB1451326A (en) * | 1973-02-16 | 1976-09-29 | Nat Res Dev | Acoustic wave devices |
| US3845418A (en) * | 1974-01-02 | 1974-10-29 | Hughes Aircraft Co | Acoustic surface wave device with reduced rf feedthrough |
| US3886484A (en) * | 1974-06-24 | 1975-05-27 | Hewlett Packard Co | Acoustic surface wave devices having improved performance versus temperature characteristics |
| FR2310029A1 (fr) * | 1975-04-30 | 1976-11-26 | Thomson Csf | Dispositif a ondes elastiques de surface permettant l'elimination des echos a transits multiples |
| US3999147A (en) * | 1975-10-31 | 1976-12-21 | Hughes Aircraft Company | Temperature stable surface acoustic wave and oscillator using the device |
| US4011526A (en) * | 1976-01-05 | 1977-03-08 | Motorola, Inc. | Temperature compensated surface acoustic wave oscillator |
-
1976
- 1976-07-09 FR FR7621104A patent/FR2358051A1/fr active Granted
-
1977
- 1977-07-05 US US05/812,472 patent/US4129837A/en not_active Expired - Lifetime
- 1977-07-06 GB GB28389/77A patent/GB1590393A/en not_active Expired
- 1977-07-08 CA CA282,343A patent/CA1078933A/en not_active Expired
- 1977-07-08 DE DE19772731032 patent/DE2731032A1/de not_active Withdrawn
- 1977-07-08 JP JP8186577A patent/JPS5330854A/ja active Pending
- 1977-07-09 PL PL1977199504A patent/PL112388B1/pl unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2117593A (en) * | 1982-03-31 | 1983-10-12 | Marconi Co Ltd | Adjusting the frequency response of surface acoustic wave devices |
| US4504758A (en) * | 1982-03-31 | 1985-03-12 | The Marconi Company Limited | Surface acoustic wave devices having frequency response that can be adjusted |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2358051A1 (fr) | 1978-02-03 |
| JPS5330854A (en) | 1978-03-23 |
| PL199504A1 (pl) | 1978-02-27 |
| US4129837A (en) | 1978-12-12 |
| CA1078933A (en) | 1980-06-03 |
| DE2731032A1 (de) | 1978-01-19 |
| FR2358051B1 (no) | 1978-12-22 |
| PL112388B1 (en) | 1980-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |